Features: brand new and high quality Plastic for shell copy four for key remote control using 12F683 master chip, support online programming, can repeatedly burn, built-in EEPROM, can copy other common with the frequency remote control, can be at any for time clear code learning code. Easy to use, fast, can be used in car remote control, lighting control, intelligent home remote control and other fields. If the remote control to code need to clear code to code. Code matching operation: press the copied remote control and a single button of the copied remote control at the same for time until the indicator of the copied remote control flashes from fast to steady, indicating that the code matching is successful, then release the buttons of the two remote controls. Perform the same operation for other keys until all keys are copied. Press and hold the two buttons on the top of the copy remote control (two buttons close to the indicator) until the indicator blinks, and then press one of the two buttons on the top for three times to clear the code (the other button is held all the for time during this process). Press and hold the two buttons under the copy remote control at the same for time until the indicator light flashes quickly, you can restore the remote control code cleared before. Package Includes: 1x Copy Remote Control Specifications: Material:Plastic,Metal Size:Approx.6.2x3.7x1.4cm/2.44x1.46x0.55in Color:Blue,Green,Purple,Red,White,Yellow Operating Frequency: 250mhz- 868mhz Operating Voltage: DC12V Operating Current: 14mA Static Current: 0mA Transmitted Power: 10mW for Launch Distance: 100m (open environment) Net Weight:30g note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.